GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Open the right front door.
  2. Operate the right front power door lock switch to lock and unlock doors.

All power door lock actuator motors will lock and unlock all doors.

Before performing any diagnostic procedure, verify symptom by using a different power door lock switch.

2

  1. Open the left front door.
  2. Operate the left front power door lock switch to lock and unlock doors.

All power door lock actuator motors will lock and unlock all doors.

3

  1. Open the rear door.
  2. Operate the rear power door lock switch to lock and unlock doors.

All power door lock actuator motors will lock and unlock all doors.

4

  1. Open the side door.
  2. Depress any power door lock switch for the lock operation.
  3. Close the side door.

Front and rear power door lock actuator motors will lock and unlock doors as soon as switch is activated.

Side power door lock actuator motor will activate approximately five seconds after the side door is closed.

Go to Power Door Locks Inoperative - Side Door Delay

5

  1. Open the side door.
  2. Depress the right front power door lock switch for the lock operation.
  3. Depress the right front power door lock switch for the unlock operation.
  4. Close the side door.

Front and rear power door lock actuator motors will lock and unlock doors as soon as switch is activated.

Side power door lock actuator motor will not operate.

Go to Power Door Locks - Side Door Delay Always Locks

6

  1. Open the side door.
  2. Operate the right front power door lock switch to lock doors.

Front and rear power door lock actuator motors will lock and unlock doors as soon as switch is activated.

Side power door lock actuator motor will not operate.

Go to Power Door Locks - Delay Always Locks with Door Open

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.